/**
 *
 * Copyright 2015 Florian Schmaus
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.jivesoftware.smack.util;

import java.util.Collection;

public class CollectionUtil {

    public static <T> Collection<T> requireNotEmpty(Collection<T> collection, String collectionName) {
        if (collection == null) {
            throw new NullPointerException(collectionName + " must not be null.");
        }
        if (collection.isEmpty()) {
            throw new IllegalArgumentException(collectionName + " must not be empty.");
        }
        return collection;
    }

}
